19445718

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 23892522

約数列:

[1, 2, 3, 6, 23, 29, 43, 46, 58, 69, 86, 87, 113, 129, 138, 174, 226, 258, 339, 667, 678, 989, 1247, 1334, 1978, 2001, 2494, 2599, 2967, 3277, 3741, 4002, 4859, 5198, 5934, 6554, 7482, 7797, 9718, 9831, 14577, 15594, 19662, 28681, 29154, 57362, 75371, 86043, 111757, 140911, 150742, 172086, 223514, 226113, 281822, 335271, 422733, 452226, 670542, 845466, 3240953, 6481906, 9722859, 19445718]

約数ペア:

[(1, 19445718), (2, 9722859), (3, 6481906), (6, 3240953), (23, 845466), (29, 670542), (43, 452226), (46, 422733), (58, 335271), (69, 281822), (86, 226113), (87, 223514), (113, 172086), (129, 150742), (138, 140911), (174, 111757), (226, 86043), (258, 75371), (339, 57362), (667, 29154), (678, 28681), (989, 19662), (1247, 15594), (1334, 14577), (1978, 9831), (2001, 9718), (2494, 7797), (2599, 7482), (2967, 6554), (3277, 5934), (3741, 5198), (4002, 4859)]